KEPORT ON THE DEEP-SEA DEPOSITS. 
69 
Eesidue. 
Additional Obseevations. 
Siliceous Organisms. 
Minerals. 
Fi{^e Washings. 
00 %), Sponge spicules, Lituo- 
idse. 
(15'00 %), m. di. 0T5 mm., 
angular and rounded ; quartz, 
mica, hornblende, augite, fel- 
spar, zircon. 
(46 '82 %), amorphous matter, 
with many minute mineral 
particles. 
00 %), a few Kadiolaria, 
Sponge spicules, one or two 
imperfect casts of Foramini- 
lera, LituoHdse. 
(10 '00 %), m. di. OTO mm., 
angular ; quartz, mica, horn- 
blende, felspar, zircon. 
(40 '39 %),' amorphous matter, 
^ with many minute mineral 
particles. 
00 %), Sponge spicules, As- 
Torhizidae, Lituolidae. 
(25'00 %), m. di. OTO ■''mm., 
rounded and angular ; quartz, 
felspar, mica, hornblende, 
zircon. 
(35 '07 %), amorphous matter, 
with many minute mineral 
particles. 
00 %), Sponge spicules, As- 
■rorhizidse, LituoUdae. 
(15 ’00 %), m. di. 0T2 mm., 
rounded and angular ; quartz, 
plagioclase, zircon. 
(45 '44 %), amorphous matter, 
with many minute mineral 
particles. 
i 
10 %), Sponge spicules, As- 
rorhizidfe, Lituolidae. 
(15 '00 %), m. di. 0'30 mm., 
rounded and angular ; quartz, 
mica, felspar, hornblende, 
tourmaline, glassy volcanic 
particles. 
(41 '85 %), amorphous matter, 
with a great number of minute 
mineral particles. 
)0 %), Sponge spicules, 
Lstrorhizidae, Lituolidae. 
(25 '00 %), m. di. 0'30 mm., 
rounded and angular ; quartz, 
mica, augite, tourmaline, a 
few glassy volcanic particles. 
(24 '90 %), amorphous matter, 
many fine mineral particles, 
and a few minute fragments 
of siliceous spicules. 
1 0 %), Sponge spicules, one 
r two Radiolaria, Astror- 
izidae, Lituolidae, imperfect 
ists. 
(1’00%), m. di. OTO mm., 
angular; quartz, mica, felspar, 
hornblende, augite, a few 
volcanic particles some of 
them glassy. 
(43'48 %), amorphous matter, 
flocculent matter, many fine 
mineral particles, and minute 
fragments of siliceous spicules. 
The mineral particles are angular and rounded and very 
abundant. With the exception of the Foraminifera 
the organisms are all fragmentary. 
The Foraminifera in some instances give internal casts, 
which are hollow and imperfect, black or red, the 
colour being due to iron or carbonaceous matter. 
Most of the organisms are fragmentary ; some are 
macroscopic. 
Many of the shells are macroscopic. The particles of 
quartz are mostly angular, but sometimes rounded and 
covered with limonite ; felspars are kaoUnised ; zircon 
is rare. 
The percentage of “other carbonate of lime organisms ” 
appears low when compared with preceding and fol- 
lowing stations, but the specimen examined did not 
seem to justify a higher estimate. 
The washings of the mud from the trawl and dredge gave 
a great many small Gasteropod and Lamellibranch 
shells, fragments of Echinoderms, Sponges, Polyzoa, 
&c. The "minerals are generally angular, but in the 
washings from the trawl there were large rounded 
grains of milky quartz. The felspar is sometimes 
kaolinised. 
Both the trawl and dredge were w’orked in depths which 
probably varied between the 350 fathoms of Station 
122, and 120 fathoms of this station. Some large 
rounded grains of milky quartz approaching 4 mm. in 
diameter were obtained in the washings of the trawl. 
Many of the pelagic and bottom-living organisms are 
macroscopic ; the larger of these are chiefly fragmentary. 
Among the minerals the quartz is very abundant. 
I All the deposits along this Brazilian coast have a red 
I colour ; some of the Globigerina Oozes might, from the 
I nature and abundance of minute mineral particles, be 
I called Ked Muds. 
Some of the shells are macroscopic. A few red coloured 
casts of the pelagic Foraminifera were obtained in the 
residue after treatment wdth acid. 
) 
J 
Fernando Noronha to Pernambuco — continued. Oil’ the Coast of South America between Pernambuco and Bahia. 
